On (03/20/19 15:27), Stanislav Fomichev wrote: [..]
Inside kernel clang compiler header (linux/compiler-clang.h) does not define __HAVE_BUILTIN_BSWAP16__. So it will go to the "else" branch in the above. So I think it should work with clang + bpf.
Hm, isn't it the opposite of what we want then? I think for llvm+bpf we always want to use the builtins to make it properly generate BPF_TO_BE/BPF_TO_LE instructions.
Oh, hmm, OK. I see your point now. bpf insn set for variables.
-ss